Dust collecting and separating apparatus.



UiyiTED sfraifnsa erreur OFFICE.

CHARLES HESSEY STUBLEY, OF LINCC..N ENGLAND, ASSIGNOR OF ONE-HALF TO FRANKLIN VHITE, LINCOLN, ENGLAND.

DUST COLLECTING AND S."PABA'1ING APPARATUS.

Speciicatiun of 'Let-ms Patent.

Patented Nov. 8, 1910.

Application filed April 23, 19GB. Serial No. 491,773.

'invented certain new and useful Improve*- inents in Dust Collecting and Sel'iarating Apparatus, of which the following is a specification. r

This invention relates to appara-tues to be carried by motor and the like vehicles tor the purpose of collecting and discharging the dust raised by them. The apparatus consists of a chamber adapted to be carried by the vehicle and provided with collecting spouts or like devices adapted to be located in position behind lthe wheels of the vehicle or at any otherpoint at which dust may be raised. The dust laden air is caused to travel up these s outs into the chamber and is there purifie and the dust collected. This is eected by providing in the chamber a number ,of sleeves formed of a filtering material. Through the sides of theseslecves the air '1s caused to pass depositin r the dust on the outside. One or both en s of each sleeve are openso that the air can pass freely therethrough, and escape to the at; mosphere. The dust falls from the sleevesA and is collected ina hopper or like receptacle arranged below.

The invention will be more fully dcscribed wit-h reference to the accompanying drawings which illustrate diagramrnatically a number of the forms of construction whic i may be adopted. V

In. these drawings :#Figure 1- is a transverse section of one form of the apparatus; Figs. 2 and 3 illustrate a'second form, Fig. 2 being a side elevation and Fig., 3 a rear view party in section; Fig. 4 is a longitudinfd section through a filter sleeve showing the s rin su ort therefor. In these views thev P g El) course ta en by the air is shown by arrows.

In the drawings and in the following description, similar. reference letters are used in connection with the correspondingr mrts of the several forms ofthe apparatus.

Reference will first be made to the foi-ii. of construction shown in Fig. 1. In this form the chainbero is of spiral or volute shape. The dust laden air is collected by means of the spouts b being drawn up by means ofthe fan or fans c located in the center of the chamber a. Before reaching `horizontally across the s iral passage.

this central chamber the air first passes from thc spouts Z1 into the trunks o which connect ai their u per ends with the chamber in which the 'an is located. The air is driven in 4a spiral course from the center of the chamber a outward and thus encounters the filtering sleeves Z which extend at intervals These sleeves d are connecte at each end with a perforated plate e which forms the end waltof ythe chamber a, and it will thus be seen that after passing throughthe filtering ma terial into the sleeve the alr is free to pass to the atmosphere through the opening at the ends, while the dust of course is retained on the outside ol'4 the sleeves. The dust falls from the sleeves to the bottoni of cach part of the spiral and passe thence by way of the tubes 7' to the collecting hopper g below the chamber. This hoppe" is provided with a valve h at its lower end which may be opened to deposit the dust when required. The trunks o are also provided at-their lower ends ,with connections jz/ (Fig. l). with the hopper g so that any dust which is deposited in the trunks may pass away therefrom.

Inthe arrangement illustrated in Fig. l the fan c is driven by means of a pulley ac tuated from a corresponding member attached to one ot the wheels, but it will be obvious that any other suitable connections may be used. Instead ot' arrangingl ihn spiral so as to' lead thc air from tht` center outward the opposite arrangement may he adopted. In this case a di 'erent arrangementof fan orifans will be necessary. This arrangement may, for instance. be similar to Ythat employed in connection with the forni of construction illustrated in the other Afigures of the drawings. Although the spiral forms of chamber above described are particularly advantageous in certain cases,othcr shapes may also be adopted when desired. Examples of other shapes are given in the drawings.

In the arrangement shown in Figs. .2 and 3 the chamber a is of cylindrical forni and the fans c are arranged to act as suction fans to draw the air through the apparatus and discharge it at L'. In this case the per forated plates -m which su port the ends vof the sleeves d are iiiclosc b f a casing 'n which connects the li'lter cham er a. with the two fan chambers. The spouts b in this case connect with the filter chamber by way of apertures b (Fig. 3) in the front par( ol the cylindrical Wall of this chamber. l'n other points this form of construction is substantially the same as that illustrated in Fig. i.

In most eases it is found desirable to provide. a central transverse partition s in the chamber a so as to prevent interference bctween the two currents of air which enter from opposite sides of the chamber.

In order to give additional support to the sleeves (l, suitable springs or elastic bands, for instance longitudinal strip springs t (Figs. 1 and ll) may be used. These springs, as clearly shown in Fig. 4, extend a ong the ins-ide ol the sleeves (l, being attached with the sleeves to the end Walls c and central partition s by clips u and o respeetively, the spring being firmly secured to the central clip v but being free to slide in the end clips u. They accordingly give supportto the'slecves and also facilitate movement thereof under the intiuence of the vibration to Which the chamber is subject-ed.

It will be obvious that filtering` sleeves cl need not necessarily be circular in cross section, but may be of any convenient shape.

The fans may be driven from any suitable part of the vehicle as previously mentioned, or by means of a small motor, turbine or the like operated by the exhaust from the engine.

It will be understood that the forms of construction illustrated in the drawings and above described are simply given by Way of illustration and that thehinvention is not restricted to these exact forms.

I declare that what l claim is 1. A portable dust collecting and separating apparatus comprising a filtering chamber having apair of approximately vertical oppositely disposed Walls provided with perforations, filtering sleeves extending approximately horizontally between said walls their ends coinciding with the pertoratious Y and the sleeves being supported by said walls', means for causing air to pass into said chamber around the outside of said sleeves, the purified air escaping from the ends of the sleeves and the dust being caught on the outside thereof, means located below said sleeves'for collecting the dust fallin;l therefrom. i

2. A. portable dust collecting and separating Aapparatus comprising a filtering chainber having a pair of. oppositely disposed j Walls provided with apertures, filtering sleeves extending approximately horizoiitally across said chamber, means forming part of the walls of said chamber for supporting said sleeves at their ends which coincide in position with apertures in said walls, spring means for supporting said members at intermediate points, means for causing the air to pass into the chamber around the outside of said sleeves, to pass through said sleeves and to escape from the ends thereof and the dust being caught on the outside thereof, means located below said sleeves for collecting the dust falling therefrom. l l

3. A portable dust collecting and separating apparatus comprising a filtering chamber7 filteringr sleeves extending approximately horizontally across said chamber and 4 supported at their ends by the Walls thereof,

means for causing air to enter said chamberat both ends thereof and to pass through the filtering sleeves, and a transverse partition member arranged centrally in said chamber so as to prevent interference between the two streams of air.

4. A portable dust colleetino` and separat'- ing apparatus comprising a filter chamber, filtering sleeves extending approximately horizontally across said chamber and supported at their ends by the Walls thereof means for-causing air to' enter' said chamber at both ends thereof and to pass through the filtering sleeves, a transverse partition member arranged centrally in said chamberrand strip springs attached to said sleeves and supported by said partition and the Walls of the chamber.

5. A portable dust collecting and separating apparatus comprising a filtering chamber 4forming a spiral passage for dust laden air, means for causing air to flow along said passage. filtering sleeves arranged horizontally across said passage and having open ends so that the t filtered air can escape While the dust is retained on the out-sides of the sleeves, a dust collecting hopperV arranged below the filtering chamber, and ducts leading from the lower part of each curve of the'spiral passage to said hopper.

In Witness whereof, I have hereunto signed my na'ne this 7th day of April 1909, in the presence et' two subscribing Witnesses.

CHARLES lfllSSllY TUBLEY.

Witnesses Heimen BUNN, Tiros. H. Coon. 

